 |
|||
|
|
|||
| ||||||||||
|
|  MIL-S-22518 /2(AS)
REQUIREMENTS (Continued)
Applicable paragraphs
of MIL-S-22518A(AS)
Starter: No. of cycles: 1200. Each cycle
shall consist of three consecutive phases
as follows:
Phase A -
Phase B -
Test Stand
Phase C -
At Following Conditions
Rotor Polar
Acceleration
Acceleration
Drive
Drive
Load
Drive
Moment of
Speed*
Time
Inertia
Speed* Time
Max
2
Sec
Lb-Ft
RPM
Lb-Ft
Sec
Sec
690
1200
8
1200
2350
23
10
290
*Pad "A"
The above values do not allow for flywheel windage losses,
NOTE:
test stand drag, or inertia of the ATS/AD. In order to
determine compliance with this specification, the test
equipment shall be calibrated and specific test results
corrected accordingly. If the acceleration specified
for Phase C is not developed because of test stand drag
torque, the test stand inertia load may be reduced or
external power may be applied to assist acceleration to
cutout speed. Time for end of phase C to cutout shall
not exceed 15 seconds.
4.5.9
Rated Torque Calibration:
1200
Pad "A" Drive Speed (RPM), Min:
Airflow, Max (Lb per Min):
110
Overrunning: The ATS/AD shall be overrun at a pad
3.5.10
4.5.10
"A" drive speed of 7250 RPM for a total of 20
hours. Testing need not be continuous, but
test periods shall not be less than 5 hours.
4.5.11.1
Low Temperature Operation:
Starter: The inlet air pressure and temperature
and the ATS/AD stabilized temperature for the
low temperature test shall be as follows:
|
|
Privacy Statement - Press Release - Copyright Information. - Contact Us |
Click
here for thousands of PDF manuals